An external battery and a wireless charging pad all rolled into one. Attach the pack to your Galaxy S7 edge for a simple wireless charge. Ditch the hassle of cables. Just attach it to your phone and get charging! Incredibly slim just at 8.53mm, the pack ensures you a comfortable grip when you need a charge on-the-go! Note that any cases need to be removed prior to charging as the wireless charging battery pack fits securely and directly over your phone without a case installed. Swap the battery pack on for a charge when needed on the go and then replace your case when you’ve recovered enough of a charge! The battery pack protects the corners and sides of your device while charging.